Garbage collection system for sweeping robot

ABSTRACT

The present application provides a garbage collection system for a sweeping robot, including a base for placing the sweeping robot and a dust collecting box body connected to the base for collecting garbage in a sweeping robot storage box, an air duct is arranged in the base, and an inlet end of the air duct is aligned with the sweeping robot storage box; an inner chamber of the dust collecting box body comprises a transition chamber, a storage chamber and a power chamber, a blower is arranged in the power chamber, the power chamber communicates with the storage chamber, a dust filter element for filtering garbage is arranged in the storage chamber; a transmission channel is formed in the transition chamber.

CROSS-REFERENCE TO RELATED APPLICATION

The present application is a continuation of international applicationof PCT application No. PCT/CN2021/097957 filed on Jun. 2, 2021, whichclaims the priority benefit of China application No. 202110559204.9filed on May 21, 2021. The entirety of each of the above-mentionedpatent applications is incorporated herein by reference and made a partof this specification.

TECHNICAL FIELD

The present application relates to the field of a sweeping robot, andmore particularly, to a garbage collection system for a sweeping robot.

BACKGROUND

The sweeping robot is frequently used in our daily life and is mainlyused for cleaning floors, and after the sweeping robot is used for aperiod of time, garbage is stored in the housing of the sweeping robot,so the garbage stored in the sweeping robot needs to be periodicallycleaned.

In the related art, for example, Chinese Utility Patent ApplicationPublication No. CN211408896 U discloses a self-charging dust collectingdevice for a sweeping robot, which includes a dust collecting box bodyand a motor base body, the dust collecting box body is arranged on themotor base body, a dust filter bag is arranged in the dust collectingbox body, a motor and a centrifugal blower driven by the motor arearranged on the motor base body, an inlet of the centrifugal blower iscommunicated with the bottom of the dust collecting box body, and anoutlet of the centrifugal blower is communicated with the atmosphere;and an inlet of the dust filter bag is communicated with an air ductinlet positioned at the bottom of the motor base body through an airduct.

In order to facilitate subsequent cleaning of the garbage collected inthe dust filter bag, the dust collecting box body is arranged at the topof the device, and during the use of the self-charging dust collectingdevice, after the centrifugal blower starts to operate, the garbage inthe storage box on the sweeping robot enters the dust filter bag via theair duct inlet positioned at the bottom of the motor base body and theair duct. Therefore, the garbage in the sweeping robot storage box iscleaned, and manual operation is omitted.

With regard to the related art described above, the inventors believethat, in the process of cleaning the garbage in the sweeping robotstorage box, the garbage moves from bottom to top in the verticaldirection on the path of the air duct of the motor base body, thegarbage moves from bottom to top in the vertical direction on the pathof the air duct of the motor base body, the garbage can reach the dustfilter bag only by moving from the bottom of the device to a positionclose to the top, and accordingly, the centrifugal blower serving as apower source needs higher power to play a role in cleaning the garbage,and the situation needs to be further improved.

SUMMARY

The present application provides a garbage collection system for asweeping robot, and has the advantage of achieving garbage cleaning byusing a blower with a lower power when cleaning the garbage of thesweeping robot.

The garbage collection system for a sweeping robot according to thepresent application adopts the following technical solutions.

A garbage collection system for a sweeping robot includes a base forplacing the sweeping robot and a dust collecting box body connected tothe base for collecting garbage in a sweeping robot storage box, an airduct is arranged in the base, and an inlet end of the air duct isaligned with the sweeping robot storage box; an inner chamber of thedust collecting box body comprises a transition chamber, a storagechamber and a power chamber, a blower is arranged in the power chamber,the power chamber communicates with the storage chamber, a dust filterelement for filtering garbage is arranged in the storage chamber; atransmission channel is formed in the transition chamber, one end of thetransmission channel communicates with an outlet end of the air duct,and other end of the transmission channel penetrates into the storagechamber and communicates with an inlet of the dust filter element; andthe transition chamber, the storage chamber and the power chamber aresequentially arranged in a horizontal direction of the dust collectingbox body away from the inlet end of the air duct.

By adopting the above technical solutions, when the sweeping robot movesonto the base, in this case, the discharging opening of the sweepingrobot storage box is aligned with the inlet end of the air duct of thebase. After the sweeping robot is in place, the blower on the dustcollecting box body starts to operate. Air flow is formed among thestorage chamber, the transmission channel and the air duct. The garbagestored in the sweeping robot storage box sequentially passes through theair duct and the transmission channel, and then enters the storagechamber. Because the dust filter element is arranged in the storagechamber, the garbage entering the storage chamber is collected into thedust filter element, so that the garbage in the sweeping robot isemptied; in the process of emptying the garbage in the sweeping robot,the path of the garbage passing through the air duct in the dustcollecting box body can be shortened. In addition, the path of thegarbage from bottom to top in the vertical direction is shorter thanbefore. In contrast, the sweeping robot can be emptied through smallerwind power generated by a blower. Therefore, when the blower needs todrive the air flow between the whole dust collecting box body and theair duct, the required working power is small, and power consumption canbe reduced.

In an embodiment, a first yielding groove for embedding of one end ofthe base is arranged on one side of the dust collecting box body closeto the base, the first yielding groove is arranged below the transitionchamber, the outlet end of the air duct is arranged on one end of thebase that is embedded into the first yielding groove and close to thetransition chamber, and an inlet end of the transmission channel isconnected to the outlet end of the air duct.

By adopting the above technical solutions, when the emptying station isassembled, one end of the base is embedded into the first yieldinggroove of the dust collecting box through the first yielding grooveprovided, and at the moment, the outlet end of the air duct and theinlet end of the transmission channel are butted in the verticaldirection and communicate with each other, and through the aboveprocess, the length between the air duct and the inlet end of thetransmission channel in the horizontal direction can be shortened.

In an embodiment, the transmission channel includes a pipe arranged inthe storage chamber, an inlet end of the pipe penetrates out a side wallof the storage chamber that is close to the first yielding groove tocommunicate with the outlet end of the air duct, and an outlet end ofthe pipe penetrates into the storage chamber and is detachably connectedto an inlet of the dust filter element.

By adopting the above technical solutions, during the emptying process,the garbage is sent from the outlet end of the air duct into the duct,and the transmission path of the garbage in the transition chamber canbe determined through the duct provided, and the shortest path betweenthe outlet end of the air duct and the dust filter element can bedetermined through the duct.

In an embodiment, a mounting opening is provided in a side wall on topof the storage chamber, and a sealing plate is detachably mounted on themounting opening so that the storage chamber is in a sealed state.

By adopting the above technical solutions, after the emptying station isused for a long time, a certain amount of garbage is accumulated in thedust filter element, and the garbage inside the dust filter elementneeds to be periodically cleaned, and the efficiency of the blower todrive the air flow among the storage chamber, the pipe and the air ductis affected. The sealing plate is detached from the dust box bodythrough the mounting opening and the sealing plate provided, so that thedust filter element can be removed from the storage chamber and thegarbage stored in the dust filter element is treated, and therefore thegarbage in the dust filter element can be cleaned in time.

In an embodiment, a positioning block is arranged on one side of thedust filter element close to the pipe, and the positioning block extendsto a bottom wall of the dust filter element and is flush with the bottomwall of the dust filter element; two parallel elongated strips arearranged on an inner wall of the storage chamber away from the powerchamber, and the two parallel elongated strips are positioned on twosides of an outlet end of the pipe; positioning strips are formed onopposite sides of the two elongated strips, and the two positioningstrips, the two elongated strips and the inner wall of the storagechamber form a positioning space for embedding of the positioning block.

By adopting the above technical solutions, when the dust filter elementis mounted in the storage chamber, the inlet of the dust filter elementis required to be ensured to be continuously butted and communicatedwith the outlet end of the pipe, a positioning space for embedding thepositioning block on the dust filter element can be provided through theelongated strip and the positioning strip provided, and the position ofthe positioning block is defined, so that the position of the dustfilter element in the storage chamber can be defined. Thus, it isensured that the inlet of the dust filter element is to be continuouslybutted and communicated with the outlet end of the pipe, and theemptying effect of the sweeping robot is ensured.

In an embodiment, a connecting block is arranged on a side wall of thesealing plate facing the power chamber, a fixing block is arranged on aside of the connecting block facing the power chamber, and a fixinggroove for embedding of the fixing block is arranged on an outer wall ofthe power chamber.

By adopting the above technical solutions, when the sealing plate isfixed on the dust collecting box body, the sealing plate is placed atthe mounting opening, the fixing block is aligned with the fixinggroove, and the fixing block is fixed in the fixing groove, so that thefixing of the sealing plate can be realized, and if the sealing plateneeds to be detached, the fixing block can be directly pulled out of thefixing groove, and the sealing plate can be removed from the dustcollecting box body.

In an embodiment, a groove bottom of the fixing groove is arc-shaped,and a strip-shaped groove is arranged on one side of the fixing blockfacing the groove bottom of the fixing groove.

By using the above technical solutions, when the fixing block isembedded into the fixing groove, the groove bottom of the fixing grooveis arranged to be an arc-shaped and strip-shaped groove. When the fixingblock is close to the fixing groove on the side of the fixing block awayfrom the connecting block, the strip-shaped groove can provide a spacein which the fixing block is deformed toward the groove bottom of thefixing groove. Thus, the frictional force between the fixing block andthe inner wall of the fixing groove is increased. The firmness of thesealing plate can be ensured while facilitating the mounting anddismounting of the sealing plate.

In an embodiment, a side wall of the sealing plate away from the powerchamber extends to form a power block, a second yielding groove isarranged on an outer wall of the transition chamber close to the powerblock, and there is a gap between an inner wall of the second yieldinggroove away from the sealing plate and an outer wall of the power blockaway from the sealing plate.

By adopting the above technical solutions, when the sealing plate needsto be removed from the dust collecting box body, an operator canconveniently apply force on the power block through the power block andthe second yielding groove provided, thereby facilitating the removal ofthe sealing plate.

In an embodiment, the air ducts on the base comprises one or more inletends, and the number of inlet ends of the air ducts corresponds to thenumber of discharging openings of the sweeping robot storage box.

By adopting the above technical solutions, due to different styles ofthe sweeping robot, the number of corresponding discharging openings ofthe sweeping robot storage box may be one or more, and the number of theinlet ends of the air ducts is one or more. If there is only onedischarging opening of the storage box, the inlet end of the air ductcan be sealed; if there are a plurality of discharging openings of thestorage box, the discharging openings of the storage box are butted andcommunicated with the discharging opening of the storage box; throughthe above process, the applicability of the whole system can beimproved.

In an embodiment, a limiting assembly for limiting position of thesweeping robot is arranged on the base so that a discharging opening ofthe sweeping robot storage box is aligned with the inlet end of the airduct.

By adopting the above technical solutions, after the sweeping robotmoves onto the base, the position of the sweeping robot can be limitedthrough the limiting assembly provided, and it is guaranteed that thedischarging opening of the storage box of the sweeping robot is alignedwith the inlet end of the air duct, and subsequent emptying operation ofthe sweeping robot is avoided.

In summary, the present application includes at least one of thefollowing beneficial technical effects:

1. When the sweeping robot moves onto the base, in this case, thedischarging opening of the sweeping robot storage box is aligned withthe inlet end of the air duct of the base. After the sweeping robot isin place, the blower on the dust collecting box body starts to work. Airflow is formed among the storage chamber, the transmission channel andthe air duct. In this case, the garbage stored in the sweeping robotstorage box sequentially passes through the air duct and thetransmission channel, and then enters the storage chamber. Because thedust filter element is arranged in the storage chamber, the garbageentering the storage chamber is collected into the dust filter element,so that the garbage in the sweeping robot is emptied; in the process ofemptying the garbage in the sweeping robot, the path of the garbagepassing through the air duct in the dust collecting box body can beshortened. In addition, the path of the garbage from bottom to top inthe vertical direction is shorter than before. In contrast, the sweepingrobot can be emptied through smaller wind power generated by a blower.Therefore, when the blower needs to drive the air flow between the wholedust collecting box body and the air duct, the required working power issmall, and power consumption can be reduced.

2. One end of the base is embedded into the first yielding groove of thedust collecting box through the first yielding groove provided, and atthe moment, the outlet end of the air duct and the inlet end of thetransmission channel are butted in the vertical direction andcommunicate with each other, and through the above process, the lengthbetween the air duct and the inlet end of the transmission channel inthe horizontal direction can be shortened.

3. The sealing plate is detached from the dust box body through themounting opening and the sealing plate provided, so that the dust filterelement can be removed from the storage chamber and the garbage storedin the dust filter element is treated, and therefore the garbage in thedust filter element can be cleaned in time.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a garbage collection systemaccording to an embodiment of the present application;

FIG. 2 is a partial cross-sectional view of a dust collecting box bodyaccording to an embodiment of the present application, which illustratesa dust filter element and a blower;

FIG. 3 is a partial cross-sectional view of a base according to anembodiment of the present application, which illustrates an air duct;

FIG. 4 is a schematic structural diagram of the dust filter elementaccording to an embodiment of the present application;

FIG. 5 is an exploded view of a sealing plate and the dust collectingbox body according to an embodiment of the present application;

FIG. 6 is another exploded view of the sealing plate and the dustcollecting box body according to an embodiment of the presentapplication;

A of FIG. 7 is a bottom view of a sweeping robot corresponding to afirst situation according to an embodiment of the present application;

B of FIG. 7 is a schematic structural diagram of a base corresponding toa first situation according to an embodiment of the present application;

A of FIG. 8 is a bottom view of a sweeping robot corresponding to asecond situation according to an embodiment of the present application;

B of FIG. 8 is a schematic structural diagram of a base corresponding toa second situation according to an embodiment of the presentapplication;

A of FIG. 9 is a bottom view of a sweeping robot corresponding to athird situation according to an embodiment of the present application;and

B of FIG. 9 is a schematic structural diagram of a base corresponding toa third situation according to an embodiment of the present application.

DESCRIPTION OF THE EMBODIMENTS

The present application will be further described in detail below.

Referring to FIGS. 1 and 2, a garbage collection system for a sweepingrobot according to an embodiment of the present application includes abase 1 for placing the sweeping robot and a dust collecting box body 2connecting to the base 1 for collecting garbage in a sweeping robotstorage box. An air duct 3 is integrally formed in the base 1 (as shownin FIG. 3). After the sweeping robot moves onto a specified position ofthe base 1 with its own driving wheel 25 (as shown in FIG. 7), thecharging terminal 4 disposed on the base 1 is connected to a chargingsocket at the bottom of the sweeping robot, such that the base 1 cancharge the sweeping robot. In order to ensure stability of the sweepingrobot on the base 1, a limiting assembly is provided on the base 1. Thelimiting assembly can limit the position of the sweeping robot on thebase 1, and ensure that a discharging opening of the sweeping robotstorage box is communicated with an inlet end of the air duct 3 forempting garbage in the storage box.

Referring to FIG. 2, an inner chamber of the dust collecting box body 2includes a transition chamber 5, a storage chamber 6 and a power chamber7. A blower 8 is mounted in the power chamber 7. The power chamber 7communicates with the storage chamber 6. A dust filter element 9 forfiltering garbage is mounted in the storage chamber 6. In thisembodiment, the dust filter element 9 is a square dust filter bag with ashape similar to an inner chamber of the storage chamber 6. Atransmission channel is formed in the transition chamber 5, one end ofthe transmission channel communicates with an outlet end of the air duct3, and the other end of the transmission channel extends into thestorage chamber 6 and communicates with an inlet of the dust filterelement 9. The transition chamber 5, the storage chamber 6 and the powerchamber 7 are sequentially arranged on the dust collecting box body 2 ina direction horizontal to the dust collecting box body 2 away from theinlet end of the air duct 3.

After the blower 8 starts to operates, the garbage enters the dustfilter element 9 from the storage box through the air duct 3 and thepipe 11, so as to achieve an emptying operation of the sweeping robot.The emptying operation refers to cleaning the garbage collected in thestorage box of the sweeping robot. In this process, a path for thegarbage entering into the dust filter element 9 can be shortened. Inaddition, a path of the garbage from bottom to top in a verticaldirection is shorter. In contrast, the sweeping robot can be emptiedwith a smaller wind generated by a blower 8. Therefore, the operatingpower of the blower 8 that is required to drive the air flow in thewhole dust collecting box body 2 and the air duct 3 is small, and thuspower consumption can be reduced.

Referring to FIGS. 1 and 2, in order to further shorten the path ofgarbage in the emptying process, a first yielding groove 10 forembedding of one end of the base 1 is arranged on one side of the dustcollecting box body 2 close to the base 1. The first yielding groove 10is arranged below the transition chamber 5. Meanwhile, the outlet end ofthe air duct 3 is arranged on one end of the base 1 that is embeddedinto the first yielding groove 10 and one side close of the base 1 tothe transition chamber 5. After one end of the base 1 is embedded intothe dust filter element 10, the inlet end of the transmission channel isconnected in the vertical direction and communicates with the outlet endof the air duct 3. Thus, the path of the garbage to the dust filters 9in the horizontal direction can be shortened.

Referring to FIG. 2, in this embodiment, the transmission channelincludes a pipe 11 mounted in the storage chamber 6. An inlet end of thepipe 11 penetrates through a side wall of the storage chamber 6 which isclose to the first yielding groove 10 to communicate with the outlet endof the air duct 3, and an outlet end of the pipe 11 penetrates into thestorage chamber 6 and communicates with the inlet of the dust filterelement 9.

Referring to FIGS. 4 and 5, after the dust filter element 9 is mountedin the storage chamber 6, it is required to limit the position of thedust filter element 9 to ensure the continuous communication of theinlet end of the dust filter element 9 with the outlet end of the pipe11. For this purpose, a positioning block 12 is integrally formed on oneside of the dust filter element 9 close to the pipe 11. The positioningblock 12 extends to and is flush with a bottom wall of the dust filterelement 9. Two parallel elongated strips 13 are integrally formed on aninner wall of the storage chamber 6 away from the power chamber 7 andpositioned on two sides of the outlet end of the pipe 11. Positioningstrips 14 are formed on the opposite sides of the two elongated strips13. The two positioning strips 14, two elongated strips 13 and the innerwall of the storage chamber 6 form a positioning space for embedding ofthe positioning block 12. When the dust filter element 9 is assembled,the positioning block 12 on the dust filter element 9 is embedded intothe positioning space, such that an end face of the positioning block 12close to the bottom of the storage chamber 6 abuts against the innerbottom wall of the storage chamber 6. In this way, the inlet end of thedust filter element 9 communicates with the outlet end of the pipe 11,which can also ensure stable communication of the inlet end of the dustfilter element 9 with the outlet end of the pipe 11.

Referring to FIGS. 5 and 6, during use of the emptying station, the dustfilter element 9 stores a certain amount of garbage, and if the garbagein the dust filter element 9 is accumulated excessively, the drivingefficiency of the blower 8 for air flow among the storage chamber 6, thepipe 11 and the air duct 3, as well as the emptying operation of thesweeping robot, will be affected. Thus, it is necessary to periodicallyclean the garbage in the dust filter element 9. For this purpose, amounting opening 15 is provided in a side wall on the top of the storagechamber 6. A sealing plate 16 is detachably attached on the mountingopening 15. After the sealing plate 16 is mounted, the storage chamber 6is in a sealed state.

In order to achieve the detachability of the sealing plate 16 on thedust collecting box body 2, a connecting block 17 is formed by extendingon a side wall of the sealing plate 16 facing the power chamber 7, and afixing block 18 is integrally formed on one side of the connecting block17 facing the power chamber 7. Further, a fixing groove 19 for embeddingof the fixing block 18 is formed in an outer wall of the power chamber7. In order to enhance the firmness of the fixing block 18 in the fixinggroove 19, the groove bottom of the fixing groove 19 is arranged to bearc-shaped, and the fixing block 18 is provided with a strip-shapedgroove 20 toward the groove bottom of the fixing groove 19. Thestrip-shaped groove 20 may provide a space for deforming of the fixingblock 18 toward the groove bottom of the fixing groove 19. When thefixing block 18 is embedded into the fixing groove 19, the fixing block18 is deformed. The fixing block 18 applies a force to the inner wall ofthe fixing groove 19. The frictional force between the fixing block 18and the inner wall of the fixing groove 19 may be increased, such thatthe firmness of the fixing block 18 in the fixing groove 19 can beenhanced.

Referring to FIGS. 5 and 6, with enhancing of the firmness of the fixingblock 18 in the fixing groove 19, the detaching of sealing plate 16 willbecome difficult. In order to facilitate detaching the sealing plate 16,a side wall of the sealing plate 16 away from the power chamber 7extends to form a power block 21, and a second yielding groove 34 isprovided on an outer wall of the transition chamber 5 close to the powerblock 21. After the sealing plate 16 is mounted, there is a gap betweenan inner wall of the second yielding groove 34 away from the sealingplate 16 and an outer wall of the power block 21 away from the sealingplate 16. When the sealing plate 16 needs to be removed from the dustcollecting box body 2, the second yielding groove 34 can facilitate theoperator to apply force on the power block 21 by means of the powerblock 21 and the second yielding groove 34, thereby facilitating thedetaching of the sealing plate 16.

Due to different styles of the sweeping robot, the number ofcorresponding discharging openings of the sweeping robot storage box maybe one or more, and the number of the inlet ends of the air ducts 3 onthe base 1 is set to one or more, and the number of the inlet ends ofthe air ducts 3 corresponds to the number of discharging openings of thesweeping robot storage box. If the storage box includes one dischargingopening, the inlet end of the air duct 3 can be sealed; if the storagebox includes a plurality of discharging openings, the dischargingopenings of the storage box communicate with the discharging opening ofthe storage box. With the above process, the applicability of the wholesystem can be improved.

In the whole processes of emptying and charging, the sweeping robot canbe positioned on the base 1 with the limiting assembly. When limitingthe sweeping robot with the limiting assembly, a driving wheel 25, auniversal wheel 26 and a cleaning roller 27 on the sweeping robot arelimited at corresponding positions of on the base 1, such that the wholesweeping robot is limited on the base 1. Since styles of the sweepingrobots are different, and the positions of the universal wheels 26 onsome of the sweeping robots are different, the corresponding limitingassemblies are also different on the base 1, and the positions of theinlet end of the air duct 3 and the positions of the charging terminals4 on the base 1 are also correspondingly different, and the specificsituations are described as follows.

First situation: positions of the driving wheels 25, the universal wheel26 and the cleaning roller 27 on the sweeping robot are shown in A ofFIG. 7. Referring to B of FIG. 7, the corresponding limiting assemblyincludes first limiting grooves 22, a second limiting groove 23 and athird limiting groove 24. The first limiting grooves 22 are arranged onboth sides of the base 1 for embedding of the driving wheels 25 of thesweeping robot. Since the cleaning roller 27 is disposed between the twodriving wheels 25 and the second limiting groove 23 is configured forembedding of the cleaning roller 27, the second limiting groove 23 isdisposed between the two first limiting grooves 22. The third limitinggroove 24 is configured for embedding of the universal wheel 26, and isdisposed between two charging terminals 4.

Furthermore, in order to ensure that the universal wheel 26 can guidethe sweeping robot to accurately move to a designated position, the base1 is provided with a guide elongated groove 28 that communicates withthe third limiting groove 24. The universal wheel 26 can accurately moveto the third limiting groove 24 by moving in the guide elongated groove28. After the universal wheel 26 of the sweeping robot moves into thethird limiting groove 24, the two driving wheels 25 are correspondinglyembedded into the corresponding first limiting groove 22, the cleaningroller 27 moves to the second limiting groove 23, and the outlet end ofthe sweeping robot storage box communicates with the inlet end of theair duct 3.

Second situation: positions of the driving wheels 25, the universalwheel 26 and the cleaning roller 27 on the sweeping robot are shown in Aof FIG. 8, the main difference from the first situation is in theposition of the universal wheel 26. Referring to B of FIG. 8, thecorresponding limiting assembly includes first limiting grooves 22, asecond limiting groove 23 and a third limiting groove 24. The positionof the first limiting groove 22 on the base 1 is consistent with that inthe first situation, the position of the second limiting groove 23remains unchanged, and the position of the third limiting groove 24needs to be adjusted on the base 1. The position of the third limitinggroove 24 is formed between the two charging terminals 4 of the base 1and corresponds to the position of the universal wheel 26 in A of FIG.8.

Third situation: positions of the driving wheels 25, the universal wheel26 and the cleaning roller 27 on the sweeping robot are shown in A ofFIG. 9, the main difference from the second situation is that adirectional wheel 29 is additionally mounted on the sweeping robot.Referring to B of FIG. 9, a roller 33 is provided to guide and assistthe sweeping robot to move to a position corresponding to the base 1when the sweeping robot moves toward the base 1. Hence, thecorresponding limiting assembly further comprises a fourth limitinggroove 30 concavely formed on the base 1. The fourth limiting groove 30is provided for embedding of the directional wheel 29. In addition,mounting holes 31 are provided on the base 1. The mounting holes 31 arepositioned on both sides of the two charging terminals 4 along thelength direction of the base 1. A connecting shaft 32 is rotatablyconnected to the inner walls of the two opposite sides in the mountinghole 31. A roller 33 is rotatably connected to the connecting shaft 32.When the sweeping robot moves on the base 1 through the roller 33provided, the frictional force between the bottom of the sweeping robotand the base 1 can be reduced, and movement of the sweeping robot on thebase 1 is facilitated.

The implementation principle of a garbage collection system for asweeping robot according to an embodiment of the present application isdescribed below. When the sweeping robot moves onto the base 1, thedischarging opening of the sweeping robot storage box is aligned withthe inlet end of the air duct 3 of the base 1. After the sweeping robotis in place, the sweeping robot can be limited on the base 1 by means ofa limiting assembly. The blower 8 on the dust collecting box body 2starts to operate such that an air flow is formed among the storagechamber 6, the transmission channel 11 and the air duct 3. The garbagestored in the sweeping robot storage box sequentially passes through theair duct 3 and the transmission channel 11, and then enters the dustfilter element 9, so that the garbage in the sweeping robot is emptied.In the process of emptying the garbage in the sweeping robot, thegarbage is collected into the dust filter element 9 only by the air duct3 and the pipe 11, and the path of the garbage in the process is short.In addition, the path of the garbage from bottom to top in the verticaldirection is shorter than before. In contrast, the sweeping robot can beemptied with smaller wind generated by a blower 8. Therefore, when theblower drives the air flow between the whole dust collecting box bodyand the air duct, the required power is small, and power consumption canbe reduced.

The above description is only preferred embodiments of the presentapplication and is not intended to limit the protection scope of thepresent application. Therefore, all equivalent changes of the structure,shape or principle according to the spirit of the present applicationshould be all included in the protection scope of the presentapplication.

List of References: 1. base; 2. dust collecting box body; 3. air duct;4. charging terminal; 5. transition chamber; 6. storage chamber; 7.power chamber; 8. blower; 9. dust filter element; 10. first yieldinggroove; 11. pipe; 12. positioning block; 13. elongated strip; 14.positioning strip; 15. mounting opening; 16. sealing plate; 17.connecting block; 18. fixing block; 19. fixing groove; 20. strip-shapedgroove; 21. power block; 22. first limiting groove; 23. second limitinggroove; 24. third limiting groove; 25. driving wheel; 26. universalwheel; 27. cleaning roller; 28. guide elongated groove; 29. directionalwheel; 30. fourth limiting groove; 31. mounting hole; 32. connectingshaft; 33. roller; 34. second yielding groove.

What is claimed is:
 1. A garbage collection system for a sweeping robot,comprising: a base for placing the sweeping robot and a dust collectingbox body connected to the base for collecting garbage in a sweepingrobot storage box, wherein an air duct is arranged in the base, and aninlet end of the air duct is aligned with the sweeping robot storagebox; wherein, an inner chamber of the dust collecting box body comprisesa transition chamber, a storage chamber and a power chamber, a blower isarranged in the power chamber, the power chamber communicates with thestorage chamber, a dust filter element for filtering garbage is arrangedin the storage chamber; a transmission channel is formed in thetransition chamber, one end of the transmission channel communicateswith an outlet end of the air duct, and other end of the transmissionchannel penetrates into the storage chamber and communicates with aninlet of the dust filter element; and the transition chamber, thestorage chamber and the power chamber are sequentially arranged in ahorizontal direction of the dust collecting box body away from the inletend of the air duct.
 2. The garbage collection system for a sweepingrobot according to claim 1, wherein a first yielding groove forembedding of one end of the base is arranged on one side of the dustcollecting box body close to the base, the first yielding groove isarranged below the transition chamber, the outlet end of the air duct isarranged on one end of the base that is embedded into the first yieldinggroove and close to the transition chamber, and an inlet end of thetransmission channel is connected to the outlet end of the air duct. 3.The garbage collection system for a sweeping robot according to claim 2,wherein the transmission channel comprises a pipe arranged in thestorage chamber, an inlet end of the pipe penetrates out a side wall ofthe storage chamber that is close to the first yielding groove tocommunicate with the outlet end of the air duct, and an outlet end ofthe pipe penetrates into the storage chamber and is detachably connectedto an inlet of the dust filter element.
 4. The garbage collection systemfor a sweeping robot according to claim 3, wherein a mounting opening isprovided in a side wall on top of the storage chamber, and a sealingplate is detachably mounted on the mounting opening so that the storagechamber is in a sealed state.
 5. The garbage collection system for asweeping robot according to claim 4, wherein a positioning block isarranged on one side of the dust filter element close to the pipe, andthe positioning block extends to a bottom wall of the dust filterelement and is flush with the bottom wall of the dust filter element;two parallel elongated strips are arranged on an inner wall of thestorage chamber away from the power chamber, and the two parallelelongated strips are positioned on two sides of an outlet end of thepipe; positioning strips are formed on opposite sides of the twoelongated strips, and the two positioning strips, the two elongatedstrips and the inner wall of the storage chamber form a positioningspace for embedding of the positioning block.
 6. The garbage collectionsystem for a sweeping robot according to claim 5, wherein a connectingblock is arranged on a side wall of the sealing plate facing the powerchamber, a fixing block is arranged on a side of the connecting blockfacing the power chamber, and a fixing groove for embedding of thefixing block is arranged on an outer wall of the power chamber.
 7. Thegarbage collection system for a sweeping robot according to claim 6,wherein a groove bottom of the fixing groove is arc-shaped, and astrip-shaped groove is arranged on one side of the fixing block facingthe groove bottom of the fixing groove.
 8. The garbage collection systemfor a sweeping robot according to claim 7, wherein a side wall of thesealing plate away from the power chamber extends to form a power block,a second yielding groove is arranged on an outer wall of the transitionchamber close to the power block, and there is a gap between an innerwall of the second yielding groove away from the sealing plate and anouter wall of the power block away from the sealing plate.
 9. Thegarbage collection system for a sweeping robot according to the claim 1,wherein the air ducts on the base comprises one or more inlet ends, andthe number of inlet ends of the air ducts corresponds to the number ofdischarging openings of the sweeping robot storage box.
 10. The garbagecollection system for a sweeping robot according to the claim 1, whereina limiting assembly for limiting position of the sweeping robot isarranged on the base, so that a discharging opening of the sweepingrobot storage box is aligned with the inlet end of the air duct.